Elevator controller



R. A. ISENBERG.

ELEVATOR CONTROLLER. APPLICATION mm MAR. I5. 1921.

Patented July 4, 1922.

2 SHEETS-SHEET 1 IIIIIIHHHIHHIHI" H. A. ISENBERG.

ELEVATOR CONTROLLER. APPLICATION mu) MAR. 1a. 192:.

Patented July 4, 1922.

2 SHEETSSHEET 2 l/VVE/V FOR BUDOLF A. ISEN'BERG, OF SAN FRANCISCO, CALIFORNIA.

ELEVATOR CONTROLLER.

Specification of Letters Patent Patented July 4, 1922.

Application filed March 15, 1921' Serial No. 452,587.

To all whom it may concern Beitknown that I, Runonr A. Isnnnnae, a citizen of the United States, residing in the cit and countyof San Francisco and State of California, have invented. a new and useful. Im rovement in an Elevator Controller, of w 'ichthe following is a specification. I v

My'invention relates to improvements in elevator controllers wherein a contact arm operates n: conjunction with uides arangsda r gu e fister i withlh 2 vator shaft for', preventing movement of said contact arm to stopf the elevator excepting at glredetermined, points" within said shaft.

' is primary object of thepresent invenr tion is to. provide a, new and improved'elevator: controller..

A further object of the invention is to provide a new and im r oved elevator controller adapted to stop t e elevator. at predetermined points within. the, elevator shaft. which oints shall be such aswill bring the floor'o the elevator carfiush with the floor atwhich stoppage'isdesired. y A still further object of. the. invention is to provideha new an improved controller of the classfdescribed which may be operated to brin ftheelevator we stop at any point within the elevator shaft by disengaging said controller from the controlling means therefor. v

Another object of the invention is to provide a new and improved controller which may easily and readily installed without interference with the present electrical or other operative mechanism of the elevator.

A' still further object is to provide an improved elevator controller adapted to stop the elevator flush'with the floors thereby decreasing the amount 'of energy consumed by moving past the floor and returning the elevator to said floor; l

Where a novice'or inefficient operator is in chargc'it is acommon practice for him to stop the elevator either too high or too low to facilitate entrance and ei'rit from the elevatorQand sometimes the eflort must be repeated'several times before bringing the elevator to a stop at the proper level or elevation;

This practice consumes considerable ad ditional energy in starting the elevator during-these several attempts, as well as valuable'time in running the car.

The *present invention provides means wherebythe elevator will always be stopped at predetermined points, or flush with the different floors, if the controller actuating means is operated at any point between said predetermined points, and )rcvious to the arrival of the elevator at sai point, thereby savingienergy and time in the operation of the elevator.

I"accomplish these several objects by means. of the improved device disclosed in the drawings forming a part of the present specifications wherein like characters of reference; are used to designate similarparts throughout the said specification and drawin ,jandin which 'ig.;1 is an enlarged broken elevation of my improved controller;

, Fig. 2 is a broken vertical section, disclosing the arrangement of the several parts; and

' Fig. 3 is' a broken vertical sectional view of an el'evator shaft disclosing the application of myinvention.

Referri ng 'to the drawings the numeral 1 is used to designate in general an elevator shaft having the usual guides 2 upon which isslidably mounted, in the usual manner, the elevator 3, t'he floor 1- 0f which is stopped at what- I term, for purposes of illustration, predetermined points or floors 6 bordering on the elevator shaft 1.

The usual'doors 7 are provided to permit ingress and egress from the elevator 3.

A controller 8, for controlling movement of the elevator 3 in either direction and for stopping the same. is provided with aplu rality of contacts 9 in the form of the invention disclosed, operatively connected to certain elevator operating mechanism, which is not shown for the reason that it forms no part of the'presen-t invention, to provide a mu'lti-spe'ed control whereby the elevator 3 may be moved at various speeds within the shaft 1.

A contact arm- 11 is rigidly mounted upon a sleeve 12'rotatably mounted within the controller: 8 and adapted to connect certain o-fthe contacts!) for thepu-rpose, of operating the elevator 3.

A controller handle 14 is rotatablymounted] upomthe sleeve 12 and adjacent the contact arm 11 and is normallyconnected thereto whereby said contact arm 11 and handle 14 may be normally operated simultaneously to start "theelenator 3 in either direction. by means of a spring 16 which is also rotatably mounted upon the sleeve 12 and provided with a pair of arms 17 extending upwardly and engaging opposite sides of the controller handle 14- and contact arm 11 respectively so that the tension of said spring 16 will normally retain said arm and handle in alignment, the purpose of which will hereinafter be more fully set forth.

The vsleeve 12 projects beyond the elevator 3 and into the elevator shaft 1 and is provided. on said outer end with a bracket 18 upon which is pivptally mounted a lever 19 carryin at one end a roller 21 .which engages, uring upward and downward movement of the elevator3, guides 22 ,vertically dis osed and arranged at.regular intervalswitiliinthe elevator shaft 2 and .upon the wall thereof adjacent the controller 8.

Avrod 23 is slidably mounted within the sleeve 12 andis pivotall connected as at 24 with the :innenend-of t e lever..'19. A nob 26 is 'mounted upon the opposite end got the rod 23 and a spring 2?.isginterposd between 5111(11101326 rand the end of the sleeve 12 to normally retain the roller 21 in engaging relation with the guides 22.

The guides.22 are beveled or chamfered at their ends as at 28.

The controller 8 is. slotted throughout-approximately one-halffof' its circumference as at 31 through which-,slot-is'projected or extended the operating or controller-handle 14 whereby the contact arm 11 may be operated. I

In operation the handle 14 is moved to the left to start the elevator i3 upward. This movementQ-throughr the actuating springs 16 'and17, will also move the-contact arm to the contacts 9 on the extremeleft side of the 'oontroller 8.and cause'the elevator operating'mechan'ism; not shown, to move the elevator-B upward during which upward movement the roller 21 on the lever 19 will beimovedto a position coincident with the handle 14 and contact arm 11. If the elevator is to be-sto'pped at the next predetermined point or:floor 6 the handle 14 may be moved to a stop position at any time previous to the arrival of the elevator'3 at that floor or predetermined point 'and theelevator will be stopped flush with that point in the following manner.

When the handle 14 'is 'movedto a stop position one of the upwardly extending springs 17 is carried with said handle and the other spring 17 moves the contact the roller 21 against the adjacent face of the guide 22 and the contact arm to a corresponding position where it will engage the contacts 9 which will produce a slower speed preparatory to stopping the said elevator 3, asdisclosed in dotted lines on the left hand side of Fig. 1 and the upper portion of Fig. 3 of the drawings.

As the elevator 3 continues to move up- Wardly the roller 21 will move along the face of the guide 22 until it reaches the end thereof when it will be permitted to move to a stop position by the beveled end 28 of said guide to bring the elevator to a stop with the floor 4: thereof flush with the floor 6 at the desired or predetermined point.

As the roller 21 is now resting or positioned between the ends of the guides 22 it is evident that the contact arm 11 may be moved in either direction to move the elevator 3 upward or downward. v

If the handle 14 is moved now to the sextreme right the elevator 3 will descend and if the handle 14 is again moved to a stop If, for any reason, it is desired or necess'ar to stop the elevator 3 between floors, the nob 26 is pushed inwardly against the tension of the spring 22 which will disengage or remove the roller 21 from the plane of the guides 22 and the contact arm 11 may be then moved to a stop or reverse position with the handle 14. a a

t ,It vise-evident that .this deviceis -not only.

simple and efiicient in construction-but it may be easily installed in present elevator svstems where a controller of'the type disclosed is used, without interfering withthe complicated circuits for controlling movement and operation of the elevator.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination with an elevator shaft and elevator thereim'of a contact arm for controlling movement of said elevator within said shaft; means for normally actuating said arm to move said elevator in either direction and to stop the same; and controlling means for preventing movement of said contact arm to a stop position when the actuating means therefor have been moved to such position between predetermined points within said shaft, and to permit movement of said contact armto stop position to stop movement of said elevator at the next adjacent predetermined point.

2. The combination with an elevator shaft and elevator therein. of a contact arm for controlling movement of said elevator within said shaft: means for normally actuating said arm to move said elevator in either direction and to stop the same; and controlling means for preventing movement of said contact arm to a stop position when the actuating means therefor have' been moved to such position between predetermined points within said shaft, and to permit movement of said contact arm to said stop position to stop movement of said elevator at the next adjacent predetermined point; and means for releasing said contact arm from said controlling means whereby said elevator may be stopped at any point between said predetermined points.

3. The combination with an elevator shaft and elevator therein, of a contact arm for controlling movement of said elevator within said shaft; means for normally actuating said'arm to move said elevator in either direction and to stop the same; and guides arranged at regular intervals Within the elevator shaft for preventing movement of said contact arm to a stop position when the actuating means therefor have been moved to such position between the ends of the guides, and to permit movement of said contact arm to said stop position to stop movement of said elevator at a predetermined point adjacent the end the actuating guide.

4:. The combination with an elevator shaft and elevator therein, of a contact arm for controlling movement of said elevator within said shaft; means for normally actuating said arm to move said elevator in either direction and to stop the same; and guides arranged at regular intervals within the ele vator shaft for preventing movement of said contact arm to a stop position when the actuating means therefor have been moved to such position between the ends of guides, and to permit movement of said contact arm to said stop position to stop movement of said elevator at a predetermined point adjacent the end the actuating guide; and means for disengaging said contact arm from said guides whereby said arm may be moved to a stop position to stop said elevator at any point within said shaft.

5. The combination with an elevator shaft and elevator mounted therein, of a contact arm for controlling movement of said elevator within said shaft; a controller arm operatively connected to the contact arm and projecting beyond the elevator: means for normally actuating said contact and controller arms to move said elevator in either direction within the shaft and to stop the same and means mounted within the elevator shaft and engaging said controller arm to prevent movement of the same and the contact arm secured thereto when the actuating means therefor have been moved to a stop position between predetermined points within said shaft, and to permit movement of said controller and contact arms to a stop position to stop said elevator at predetermined points within said shaft.

6. The combination with an elevator shaft and elevator mounted therein, of a contact arm for controlling movement of said elevator within said shaft; a controller arm operatively connected to the contact arm and projecting beyond the elevator; means for normally actuating said contact and controller arms to move said elevator in either direction within the shaft and to stop the same; and means mounted within the elevator shaft and engaging said controller arm to prevent movement of the same and the contact arm secured thereto when the actuating means therefor have been moved to a stop position between predetermined points within said shaft, and to permit movement of said controller and contact arms to a stop position to stop said elevator at predetermined points within'said shaft; and means for disengaging said controller arm from said means to permit movement of the contact arm with the actuating means therefor whereby said elevator may be stopped at any point within said shaft.

7. The combination with an elevator shaft, an elevator therein and multi-speed controller within said elevator, of a contact arm within said controller; means for normally actuating said contact arm to move the elevator in either direction at various speeds and for stopping the same; and means for permitting movement of said contact arm to decrease the speed of said elevator when the actuating means therefor are moved to a stop position between predetermined points within the elevator shaft, and to permit further movement of said contact arm to a stop position to stop said elevator at a predetermined point within said shaft.

8. The combination with an elevator shaft, an elevator therein and mnlti-speed controller within said elevator, of a contact arm within said controller; means for normally actuating said contact arm to move the elevator in either direction at various speeds and for stopping the same; means for permitting movement of said contact arm to decrease the speed of said elevator when the actuating means therefor are moved to a stop position between predetermined points within the elevator shaft, and to permit further movement of said contact arm to a stop position to stop said elevator at a predetermined point within said shaft; and means for disengaging said contact arm from said means whereby said elevator may be stopped at any point within the elevator shaft.

In witness whereof I hereunto set my signature.

RUDOLF A. [SEN BERG. 

